Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Join our Q&A platform and connect with professionals ready to provide precise answers to your questions in various areas. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.
Sagot :
The amount of nitrogen-13 sample that remained after 40 minutes has been 8 mg.
Half-life can be defined as the time required by the substance to reduce half of its initial concentration.
The half-life of Nitrogen-13 has been 10 minutes. In 10 minutes, the sample will be reduced to
of its concentration,
The total time has been 40 minutes.
The number of half-life experienced by the sample has:
Number of half-life = {Total-time}/{Half-life}
Number of half life cycles = {40}/{10}
The number of half-life cycles = 4
The sample has been reduced to 50% in the first half-life cycle,reduced to 25% in the 2nd half-life cycle, then 12.5% in 3rd half cycle and finally 6.25% by the end of 4th half cycle.
The sample remained = 6.25% of the initial concentration.
The sample remained = (6.25/100)
×128mg
The sample remained = 8 mg
Thus from above we concluded that the amount of nitrogen-13 sample that remained after 40 minutes has been 8 mg.
learn more about half life: https://brainly.com/question/16387602
#SPJ4
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.
